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Language D
(D feuture's galore)
| Date: | 10/09/05 |
| Author: | Fredrik Olsson |
| URL: | n/a |
| Comments: | 2 |
| Info: | http://www.digitalmars.com/d/ |
| Score: |  (3.01 in 174 votes) |
/*
bob.d
bob - 99 Bottles of beer
Numbers in written form correct grammar and last verse included.
Uses D features such as;
Nested functions, in two levels; numToBottles and numToText.
Dynamic arrays, static such in numToText for text lookups, and as strings.
Strings in switches.
Imports, stdio to get writefl()/writefln(), string for capitalize().
Created by Fredrik Olsson on 2005-10-09.
Copyright (c) 2005 Treyst AB. All rights reserved.
*/
module bob;
private {
import std.stdio;
import std.string;
}
int main(char[][] args) {
char[] numToBottles(uint num) {
char[] numToText() {
static char[][] nums = ["", "one", "two", "three", "four", "five", "six",
"seven", "eight", "nine", "ten", "eleven", "twelve"];
static char[][] decs = ["twenty", "thirty", "forty", "fifty", "sixty",
"seventy", "eighty", "ninety"];
if (num == 0)
return "no more";
if (num < 13)
return nums[num];
if (num < 20) {
char[] tmp = nums[num % 10];
switch(tmp) {
case "three":
return "thirteen";
case "five":
return "fifteen";
default:
return tmp ~ "teen";
}
}
return decs[(num / 10) - 2] ~ (!(num % 10) ? "" : "-" ~ nums[num % 10]);
}
return capitalize(numToText()) ~ " bottle" ~ ((num != 1) ? "s" : "");
}
int bottles = 99;
char[] temp = numToBottles(bottles);
while (bottles >= 0) {
writefln(temp, " of beer on the wall, ", temp, " of beer.");
bottles--;
if (bottles >= 0) {
writef("Take one down, pass it around,");
temp = numToBottles(bottles);
} else {
writef("Go to the store and buy some more, ");
temp = numToBottles(99);
}
writefln(temp, " of beer on the wall.\n");
}
return 0;
}
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Alternative Versions
| Version | Author | Date | Comments | Rate |
|---|---|---|---|---|
| 1 | Stewart Gordon | 05/31/05 | 4 | |
| Template metaprogramming | Don Clugston | 07/11/06 | 1 | |
| Fiber "Ring" | Bryan Knowles | 11/17/10 | 0 | |
| Div Operator Edition | badmadevil | 02/29/08 | 0 | |
| 5 | Philipp Winterberg | 04/20/05 | 7 | |
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Comments
- missing a space after the comma between the third and fourth half-lines
- "eighteen" is misspelled
- with the verses run into two lines instead of four, the middle capital doesn't look right